(*
This file is part of the Lustre reader

* Copyright (c) 2010, Nicola Camuffo.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*     * Redistributions of source code must retain the above copyright
*       notice, this list of conditions and the following disclaimer.
*     * Redistributions in binary form must reproduce the above copyright
*       notice, this list of conditions and the following disclaimer in the
*       documentation and/or other materials provided with the distribution.
*     * Neither the name of Nicola Camuffo, nor the
*       names of its contributors may be used to endorse or promote products
*       derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER ''AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*)


open Lustypes


exception Expression_evaluation_exception of string



val _plus : _expression -> _expression -> _expression
    
val _minus : _expression -> _expression -> _expression

val _mult : _expression -> _expression -> _expression

val _div : _expression -> _expression -> _expression

val _intdiv : _expression -> _expression -> _expression

val _mod : _expression -> _expression -> _expression

val _uminus : _expression -> _expression

val _and : _expression -> _expression -> _expression

val _or : _expression -> _expression -> _expression

val _not : _expression -> _expression

val _impl : _expression -> _expression -> _expression

val _xor : _expression -> _expression -> _expression

val _eq : _expression -> _expression -> _expression

val _uneq : _expression -> _expression -> _expression

val _lt : _expression -> _expression -> _expression

val _gt : _expression -> _expression -> _expression

val _lte : _expression -> _expression -> _expression

val _gte : _expression -> _expression -> _expression

(*
val _toreal : _expression -> _expression

val _toint : _expression -> _expression

val _tobool : _expression -> _expression
*)

val _bool_value : _expression -> bool
